Transactions and proceedings of the Paleontological Society of Japan. New series
Online ISSN : 2186-0963
Print ISSN : 0031-0204
ISSN-L : 0031-0204
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Volume 1978, Issue 110
Displaying 1-3 of 3 articles from this issue
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  • 688. TRIASSIC CORALS FROM MT. DAIFUGEN, NARA PREFECTURE, SOUTHWEST JAPAN
    HISASHI OKUDA, NOBUO YAMAGIWA
    1978 Volume 1978 Issue 110 Pages 297-305
    Published: June 30, 1978
    Released on J-STAGE: May 25, 2010
    DOIhttps://doi.org/10.14825/prpsj1951.1978.110_297
    JOURNAL FREE ACCESS
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    Nine species including one new species and one new subspecies of hexacoral described in this article were found from "limestone blocks" which are contained in greenstone at Wasabidani in the eastern part of Mt. Daifugen, Nara Prefecture, Southwest Japan. Judging from the paleontological data, we consider that the age of the present hexacoral assemblage is Late Triassic.
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  • 689. A NEW TEXANITINE AMMONITE FROM HOKKAIDO : STUDIES OF CRETACEOUS AMMONITES FROM HOKKAIDO AND SAGHALIEN-XXXIV
    TATSURO MATSUMOTO, YOSHIMITSU HARAGUCHI
    1978 Volume 1978 Issue 110 Pages 306-318_1
    Published: June 30, 1978
    Released on J-STAGE: May 25, 2010
    DOIhttps://doi.org/10.14825/prpsj1951.1978.110_306
    JOURNAL FREE ACCESS
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    This is an addition to a previously published monograph of the Texanitinae (MATSUMOTO, 1970). A new species of Texanites is described on the basis of a recently obtained specimen from about the middle of the Santonian in the Oyubari district, central Hokkaido. It is allied to Texanites (Texanites) hour-cqui COLLIGNON, from the Middle Santonian of Madagascar, but is distinguished by its rursiradiate, distant ribs, inequidistant configuration of tubercles and diverging deep branches of L in the suture. As an appendix, notes are given on the biostratigraphic subdivision and correlation of the Santonian primarily on the grounds of texanitine species.
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  • 690. ON SOME INTERESTING BIVALVES FROM THE CRETACEOUS HIMENOURA GROUP IN KYUSHU
    MASAYUKI TASHIRO
    1978 Volume 1978 Issue 110 Pages 319-329
    Published: June 30, 1978
    Released on J-STAGE: May 25, 2010
    DOIhttps://doi.org/10.14825/prpsj1951.1978.110_319
    JOURNAL FREE ACCESS
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    Here are described three new species and one new subspecies of the bivalves from the Santonian of the Himenoura Group in an area of Amakusa-Kamishima in Kyushu. Atreta intulaevis sp. nov. is characterized by a single adductor scar. Accordingly Atreta can undoubtedly be classified into the Plicatulidae as already suggested by Cox (1964). Since Pycnodonte and Thyasira prospered in Africa, Europe and N. America from the Campanian onward, Pycnodonte amakusensis sp. nov. and Thyasira (Thyasira) himedoensis sp. nov. from the Santonian were probably among the older forms in each genus. Chlamys (s. l.) tamurai tamurai and Chlamys (s. l.) tamurai immodesta subsp. nov. are characterized not only by the surface ornamentation of Mesozoic pectinids, e. g., Camptonectes and Camptochlamys, but also by that of Cenozoic ones, e. g., Palliolum and Eburneopecten.
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